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Found 578 results

  1. Hexanchus or Notorynchus

    I recently picked up three cow shark teeth with uncertain identifications. I can not be sure myself so I thought I’d get some help sorting this out. First one is 19mm and comes from the Pico Formation, Ventura County California. I believe it is Pliocene in age. I think it is a Hexanchus tooth but Notorynchus is known from at least one So Cal formation similar in age according to fossilworks. It is missing the largest cone. Even though I lean 6 Gill, I’m almost hoping somebody thinks 7 Gill because a California 7 Gill would be sweet lol Either way, it’s a really pretty tooth. Next are two from the Miocene deposits of Gironde France. Notorynchus and Hexanchus are both described from this location and they are small partials. I really can not figure out if I have two Notorynchus or one of each. I’m rooting for a 6 Gill but a great location to add regardless of the ID. All opinions are welcome.
  2. Is This a Fossil?

    Hey everyone! I was recently fossil hunting at Bolinas in California, which is known for its fossilized sand dollars. While hunting, I found this strange piece and I'm not sure if it's a fossil or not. It's from the Merced Formation, which is from the Late Pliocene to the Pleistocene in California. I have no clue what it is, but I am looking forward to hearing if anyone on the forum does. Thanks!
  3. Pliocene marines and a tooth.

    My family and I went away for the weekend to the coast. This specific coastal area is known for its pleistocene mammal fossils as well as msa artifacts and hominid fossils. The pictures below are of the beach scape, outcrops fossil roots and shells in situ. The other shell and sponge fossils where found in another location thats roughly 100m above sea level. The fossil tooth is from a cape porcupine.
  4. Molar cap

    It is hard finding days to hunt in South Florida. 95% of my locations are 3-4 feet over my head. It is only by marking and remembering low water locations that I get to continue in these heavy rain months. Even now the available locations are limited, and thus the finds can also be limited, but not today. This location is a Mio_Pliocene that can produce very rare items. My hunting buddy found the 1st. A badly worn (old individual) molar cap.. Usually the caps I find are unused, pristine, making them far easier to identify. The measurements around the edges are 17x 17x x 15.5. This is very small for the mammals that traditionally have caps in my hunting areas (Mastodon, peccary, tapir, dugong, manatee, please add others you can think of in Florida). All comments and suggestions appreciated.
  5. Found this in the Yorktown formation in Virginia. Not sure which bone this is from a Baleen Whale. Any ideas?
  6. Stingray Mouthplate

    Found today. Any fossil with multiple ray teeth is rare for me. I have previously found a complete mouthplate about the size of a quarter. Then, 3/4 of a much larger mouthplate and it was oval in shape. This one seems to be square or rectangular. Please identify the species and if possible, give me a photo of a single tooth. Thanks....
  7. Leaf Fossils

    I purchased these 2 fossils a few years back at a show in California. I am trying to identify them......Thanks, Augie
  8. A new paper is available online: Bisconti M, Bosselaers MEJ. 2020. A new balaenopterid species from the Southern North Sea Basin informs about phylogeny and taxonomy of Burtinopsis and Protororqualus (Cetacea, Mysticeti, Balaenopteridae) PeerJ 8:e9570 https://doi.org/10.7717/peerj.9570 The description of a new Protororqualus species from the Zanclean of the southern North Sea basin as well as North Carolina comes months after the publication of the PeerJ paper describing a new Archaebalaenoptera species from the southern North Sea, furthering making clear that the geographic distribution of extinct rorqual genera is widespread like modern rorquals. This paper also re-assesses the genus Burtinopsis, agreeing with Steeman (2010) in treating this genus as dubious (of the material included in the hypodigms of both Burtinopsis species, only 11 can be safely regarded as belonging to Balaenopteridae, of which RBINS M 688 and M 702 mostly closely resemble the earbones of Protororqualus).
  9. Large Vert

    At first I thought dugong, but now I am unsure. I am still thinking marine mammal. @Boesse That would also make sense from where it was found. Un_fused epiphysis means juvenile.
  10. Fossil identification

    I found this fossil in Santa Cruz and don’t know what part of whale this is. Thank you all so much. The photos are the one I’m not so sure about.
  11. Iowa River find vertebra

    Anyone? I’ve never seen one like this before?... 5.5”-6” long 2.25 high, obviously broken.
  12. There are blocks of marl in the river and you have to go up and break them to find the fossils There are a lot of shells
  13. 19cm long tooth?

    I inherited my grandfather's modest fossil collection, and in it was this 8 cm wide by 19cm long fossil that I need help identifying. It is pointed at one end, has external ridges and an internal hollow at the other--features that look tooth-like to me, but I'm a newbie at this. Unfortunately I have no information on location of discovery or likely age. My hope is that fossils like this are common enough that one of the more educated and experienced here will recognize it right away. I'd be grateful even for best guesses that help me direct further research.
  14. Seal or Walrus?

    hello all, it's been a while since I've been on. I hope you are all doing well in these trying times. I recently purchased a series of large mammal phalanges from Lee Creek. They're clearly Yorktown (Pliocene). While they seem to resemble seal phalanges, they're awfully large (14-15 cm). I'm wondering if they are walrus instead? Does anyone know if the last Smithsonian Lee Creek volume (Vol 4) is available online as a pdf? Alternately, are there easy "tolls" that I can use to distinguish, or does anyone feel comfortable making a distinction? Thanks!
  15. Old bison bones

    Found these bones about 8 foot down in a cut bank along a river. Suspect bison.. any help appreciated. Have more pics if needed. I included the cut bank. Believe whole skeleton to be there, did not find head yet. Thanks
  16. Iowa River Fossil finds

    Found this today, not quite sure of the animal this toe bone belonged to?... As big as my fist. Help I’d’ if would be greatly appreciated...
  17. Iowa River Fossil Finds

    Some of my collection...
  18. Stag moose drawing

    A quick sketch I did.
  19. Iowa River find 2 unsure

    This is one I’m not really sure about this vertebra, or this leg bone?... both are very heavy for their size!
  20. Bison

    I know what this is, but wanted to share. Really obvious tool marks!
  21. Iowa river finds

    To me this skull looks canine, but not quite sure. Please have a look and let me know what you think?
  22. Hey everyone! I've been offline for a very long time (too long ), but I'm finally back in the fossil game! I celebrated the start of the summer vacation the right way with quite a few hunts in Antwerp, and those hunts didn't disappoint When in Antwerp I especially look for shark teeth, but we find other stuff as well (bones and teeth of mammals), which I might make another post about We've also been on a mini vacation to the Belgian Ardennes so stay tuned for more photo spam One of the first finds was this beautiful C. hastalis (bonus points if you spot the matching nail polish ) A pic of how we find them around here Had a lucky day when we found this P. benedeni! Another lucky day when we found this beautiful hastalis And another VERY lucky day when found this beast of a C. carcharias This is the first we've found in all those years of searching for shark teeth!! (they're very rare here in Antwerp) We just couldn't believe our luck with this one Can't wait to explore this location further the coming weeks I hoped you enjoyed this summary of our hunts! Of course we find more teeth than just the 'picture perfect' ones, but these are definitely the highlights Kind regards, Angie
  23. Sometime a tooth tells a story

    I found this Hemipristis serra tooth a couple of years back. Looking at the left photo, I noted the bite marks, and the fact that the distance between each bite mark was approximately the same as the distance between this tooth's serrations!! So I make up a possible story. This shark was in a feeding frenzy, and under the feeding pressure, this tooth (like other shark teeth) fell out, but before it could clear the mouth area, the shark bit down again, leaving these telltale marks. There are likely other "possibles", but I prefer this one. Now more recently, I have another tooth, in this case a Galeocerdo cuvier, and interestingly it also has a bite mark. Once again the distance seems to be the same between the bite marks and between the serrations on this tooth. I notice a lot. Look at that little hole in the enamel above the bite marks. I have no story that explains that hole. But my story breaks down. The bite marks on THIS tooth seem post _ fossilization not in the enamel, but on the enamel. So I opened this thread to attract others who have bite marks on their shark teeth, and ask some of the shark tooth experts their insights. @Northern Sharks@Al Dente@siteseer@MarcoSr@Plax@sixgill pete
  24. Only example of this king Penguin Skull from this location. Thought to be Pliocene period with everything else we are finding here. Progress is coming along nicely even with a bad break through the top of the cranium. More progress to follow and will have an international scale by next time (small town problems) any my more information on this or similar species would be much appreciated as I have limited knowledge on this particular Penguin. thanks community!
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